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muminat
3 years ago
15

Point Eis on line segment DF. Given DE = 8 and EF= 2, determine the length DF.

Mathematics
1 answer:
julia-pushkina [17]3 years ago
6 0

Step-by-step explanation:

if that's what you mean

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(Can someone help me please?)
Scorpion4ik [409]

Answer:

10

Step-by-step explanation:

The answer is 10 because there are 20 days and no home work is due on 7 of those days so that’s 13 days with homework from math or writing. Then you take the three days where it was just math and subtract that to get 10 days of writing.

6 0
3 years ago
Which of the equations below is not a Linear Equation?
Gnesinka [82]
The answer is part B
7 0
3 years ago
Plz help me with this
Elodia [21]

Answer:

its green so you got it right

and if thats not the case you are correct

Step-by-step explanation:

3 0
2 years ago
The height H of an ball that is thrown straight upward from an initial position 3 feet off the ground with initial velocity of 9
mariarad [96]

Answer:

The ball will be 84 feet above the ground 1.125 seconds and 4.5 seconds after launch.

Step-by-step explanation:

Statement is incorrect. Correct form is presented below:

<em>The height </em>h(t)<em> of an ball that is thrown straight upward from an initial position 3 feet off the ground with initial velocity of 90 feet per second is given by equation </em>h(t) = 3 +90\cdot t -16\cdot t^{2}<em>, where </em>t<em> is time in seconds. After how many seconds will the ball be 84 feet above the ground. </em>

We equalize the kinematic formula to 84 feet and solve the resulting second-order polynomial by Quadratic Formula to determine the instants associated with such height:

3+90\cdot t -16\cdot t^{2} = 84

16\cdot t^{2}-90\cdot t +81 = 0 (1)

By Quadratic Formula:

t_{1,2} = \frac{90\pm \sqrt{(-90)^{2}-4\cdot (16)\cdot (81)}}{2\cdot (16)}

t_{1} = 4.5\,s, t_{2} = 1.125\,s

The ball will be 84 feet above the ground 1.125 seconds and 4.5 seconds after launch.

3 0
3 years ago
In the figure, what is the value of z?<br><br><br> 2.9<br> 5.6<br> 6<br> 8.75
myrzilka [38]
The value of z would be 5.6
7 0
3 years ago
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